A self-inspection method for sending and receiving channels of an air traffic control inquiry response simulator

Abstract

The invention discloses a method for self-inspection of the transmitting and receiving channels of an air traffic control inquiry response simulator. The operating frequencies of the transmitter and the receiver are respectively controlled by a signal processing module, and the channel of the radio frequency signal of the transmitter is designed as two channels that can be switched. One way can be output to the antenna port through the front-end amplifier, and the other way can be output to the receiver module through the coupler. When the self-test starts, the signal processing module outputs the excitation pulse signal to the transmitter, and the transmitter generates a radio frequency signal and outputs it to the receiver through the circulator. The module judges whether the transceiver channel is working normally according to the received baseband signal. The engineering practice has proved that the detection method is accurate and effective, which improves the detection efficiency and reliability of the self-inspection of the air traffic control inquiry response simulator, and saves manpower and material costs.

Description

technical field [0001] The invention belongs to the field of data transmission channel testing, and in particular relates to a method for self-testing of a sending and receiving channel of an air traffic control inquiry response simulator. Background technique [0002] The secondary radar (Secondary surveillance radar, referred to as SSR) system consists of an interrogator and a transponder. The interrogator of the secondary radar system can transmit a 1030MHZ interrogation signal and receive a 1090MHZ response signal from the transponder to obtain the position and height of the target. , flight number, identification code and other information. Secondary radar systems are widely used in the field of traffic control in military and civil aviation. [0003] The air traffic control interrogation and response simulator is a special detection device for detecting whether the secondary radar system is working normally. Its working mode can be set to interrogator mode or transpon...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the detection efficiency is low due to the self-inspection of the transceiver channel of the existing air traffic control inquiry response simulator mainly through external detection equipment or by adding an additional self-inspection oscillation source. The present invention proposes an air traffic control inquiry The self-test method of the transceiver channel of the response simulator does not need to increase the self-test oscillation source and external detection equipment, and the closed self-test of the transceiver channel can be completed only through its own transceiver module

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